Our Methodology

Parasite infestation risk

Forecasts of infestation risk for coming week are indicated by risk maps, consisting of 5 risks levels represented on a scale from 1 (lowest risk) to 5 (highest risk).

The Risk Index (RI) is calculated according to the following formula:

Risk Index (RI) = √(AIxDI)

AI=Activity Index, DI= Density Index

Transmission risk of vector-borne disease

As arthropod parasite activity increases, the greater the risk of infestation is and this will result in an increase in the risk of disease transmission.

Scroll table to see full content

Risk index

Risk scale

Risk

0-20

1

very low

20 – 40

2

low

40 – 60

3

medium

60 – 80

4

High

80 – 100

5

Very high

Note :

When the weather forecast is not favourable for supporting flea or tick activity, it does not mean that they have been eradicated but rather that they have become "dormant" within the environment.

Arthropod populations do not only depend on weather conditions. Other elements supporting and determining their ecology should also be taken into account. Biotopes (plants, environment) are key factors. Similarly, wild hosts (deer, wild boars, foxes, rabbits, rodents, polecats, hedgehogs, etc.) are regarded as non-limiting factors despite their varying density.

Veterinarians are best placed to give informed advice regarding the risk to pets, taking into account all the other parameters involved, such as biotopes and wild hosts in specific locations.

Mobile App

Download our free mobile app to stay up to date with the
changing risks for parasites in your region.